<span>Schleiden and Theodor Schwann (1810-1882)were the first to recognize that all plants and animals are composed of cells. [ In 1839, they defined their "cell theory" in which they also stated that nuclei and cell membranes are common to all cells and recognized the presence of unicellular (single-celled) and multicellular (many-celled) organisms. ( ]</span>
Answer:
A. Allele frequency
Explanation:
Allele frequency is the fraction or percentage of a specific allele in the total number of alleles in a population.
Answer:
a plasma membrane: an outer covering that separates the cell's interior from its surrounding environment.
cytoplasm: a jelly-like cytosol within the cell in which other cellular components are found.
DNA: the genetic material of the cell.
ribosomes: where protein synthesis occurs.
Explanation:
Answer:
4.
Explanation:
The universe began as a small, dense ball of matter. Gravity pulled it into itself, causing and explosion, hence the "big bang" Please mark brainliest! And ask more questions if you need!
Soil.
food, water, and an appropriate environment are crucial to all organisms.
